falling.cpp

C/C++程序设计导论（第二版）》程序源文件

// falling.cpp  Calculate a victim's altitude each second after a fall 
//   from a given height

#include <iostream.h>
#include <math.h>

const float GRAVITY=32.0;

void FallTable (float h)
{  float time,
  	altitude;
   time = 0.0;
   altitude = h;
   while (altitude > 0.0)
   {	time = time + 1.0;
   	altitude = h - GRAVITY * time * time / 2.0;
   	cout << "time: " << time << " altitude: " << altitude << endl;
   }
}

void main()
{  float height;
   cout << "Enter building height: ";
   cin >> height;
   FallTable(height);
   cout << "done." << endl;
}